How to autoload PHP namespaces without Composer?

Question

I'm trying to use this library: https://github.com/wunderio/docebo-php

However, its not found in Composer, despite it listing the Composer command on the page.

How can I call this library and create a new instance of the Docebo class as shown in the example?

use Docebo\Docebo;

try {
  $docebo = new Docebo('base_url', 'client_id', 'client_secret', 'username', 'password');
} catch (Exception $e) {
  echo $e->getMessage();
}

I attempted to use this library by cloning the github repo, and creating the following:

docebo-php/src$ cat test.php
<?php
require_once("Docebo/Docebo.php");

use Docebo\Docebo;

try {
  $docebo = new Docebo('base_url', 'client_id', 'client_secret', 'username', 'password');
} catch (Exception $e) {
  echo $e->getMessage();
}
?>

This just results in:

$ php test.php
PHP Fatal error:  Interface 'Docebo\DoceboInterface' not found in /var/www/www/htdocs/docebo-php/src/Docebo/Docebo.php on line 18

Answer 1

It's not clear that are you using any framework or just plain PHP code.

my solution is for plain PHP code:

you can write your own PHP autoloader to include libraries like :

function __autoload($class_name)
{
    //class directories
    $directorys = array(
        '/Controllers/',
        '/Libraries/',
    );

    //for each directory
    $ds = "/"; //Directory Seperator
    $dir = dirname(__FILE__); //Get Current file path
    $windir = "\\"; //Windows Directory Seperator
    $path = str_replace($windir, $ds, $dir);

    foreach($directorys as $directory)
    {
        //see if the file exsists
        if(file_exists( $path . $directory . $class_name . '.php'))
        {
            require_once( $path . $directory . $class_name . '.php');
            //only require the class once, so quit after to save effort (if you got more, then name them something else
            return;
        }
    }
}

Store it as autoload.php in your project root directory, then require it on top of any PHP file you have like:

require_once('autoload.php');